Improvement in torsion-springs for vehicles



fr @reitera RICHARD DUDLEY, OF ERIE, PENNSYLVANIA.

IMPROVEMENT IN TORSION-SPRINGS FOR VEHICLES.

Specification forming part of Letters Patent No. 187,606., datedFebruary 20, 1877; application filed v October 15, 1875. A

To all whom it may concern:

Be it known that I, RICHARD DUDLEY, of

Athe city and county of Erie, and State of Pennbeing had to theaccompanying drawing, and

the letters of reference marked thereon, making part of thisspecification, in which- Figuwre l is a side view oi' a buggywit'n thesprings attached. Fig. 2 is a bottom-plan view. Figs. 3 and 4 showmodifications of the spring. Fig. 5 is an enlarged detached View of thethirnble.

My invention consists in so arranging tor sional springs in connectionwith the ruiminggear of a wagon as to cause said springs, in addition totheir ordinary function, to also act as equalizers, so that whenpressure is applied at any one point of the vehicle the body will yieldin a uniform manner.

To accomplish this my invention consists in connecting a rockingshai'tto the lateral lever-arms of torsion-springs, in such manner thatwhen pressure is applied to the vehicle the rocking shaft shall, throughthe depression ofthe lateral levecarms, cause the springs .to actsimultaneously in developing their torsional action, thus providing anequalizer.

The construction and operation ot' my in vention are as follows: A isthe body, and B B are the Wheels. of' a buggy, constructed in anyordinary style and of any suitable material. In Fig. 2 is shown thebottom of the buggy inverted, and my arrangement of spring, and where OG represent rocking shafts, connected, by a ruitable bearing, with theaxles. D D are torsion-springs, arranged in duplicates at each end ofthe body, resting on and working in rawhide bearingsw m, thelateraIlever-arms d d of said springs being connected with the rockingshafts C C through links E E.

The form and arrangement of springs, as shown in the drawing, are mostadmirably adapted for my purpose; but there is nothing arbitrary aboutit, as other styles of spring might be used, my object simply being toconnect the rotating arm with the lateral leverarm ot'ithe springs bymeans oi' links E E, so as to provide an equalizer.

In Fig. 5 is shown, at e e, a brass cylindrical bushing, which not onlyprevents the wearing away of the bearing, but lwhich also renders thesame comparatively noiseless in action.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

In combination with the body ot' a vehicle, rocking shafts G C andtorsion-springs D D, connected by links E E, to operate substantially asdescribed.

1n testimony whereot'I have signed my name to this specilication in thepresence of two subscribing witnesses.

RICHARD DUDLEY.

Witnesses:

EDWIN J AMES, J. W. HAMILTON J oHNsoN.

